(3-√2а) (3+√2а) +4а=?
(2√3-3√а) (2√3+3√а) =?
(2√7-√7а) (2√7+√7а) =?
решите пж
(2√3-3√а) (2√3+3√а) =?
(2√7-√7а) (2√7+√7а) =?
решите пж
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Ответ:
1) =9+2а
2) =0
3) =28-7а
Вот ответ!